Question

How to print human-readable information about an array with print_r() in PHP

Answer 1

$arr = array ('a' => 'PHP', 'b' => 'C', 'c' => 'Java', 'd' => array ('xOS', 'yOS', 'zOS'));

print_r ($arr);



/*
run:
    
Array ( [a] => PHP [b] => C [c] => Java [d] => Array ( [0] => xOS [1] => yOS [2] => zOS ) ) 
       
*/

 

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Answer 2

$arr = array ('a' => 'PHP', 'b' => 'C', 'c' => 'Java', 'd' => array ('xOS', 'yOS', 'zOS'));

echo "<pre>";
print_r ($arr);
echo "</pre>";



/*
run:
    
Array
(
    [a] => PHP
    [b] => C
    [c] => Java
    [d] => Array
        (
            [0] => xOS
            [1] => yOS
            [2] => zOS
        )

)

       
*/

 

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Answer 3

function print_r2($val)
{
    echo '<pre>';
    print_r($val);
    echo  '</pre>';
}

$arr = array ('a' => 'PHP', 'b' => 'C', 'c' => 'Java', 'd' => array ('xOS', 'yOS', 'zOS'));

print_r2($arr);



/*
run:
    
Array
(
    [a] => PHP
    [b] => C
    [c] => Java
    [d] => Array
        (
            [0] => xOS
            [1] => yOS
            [2] => zOS
        )

)

       
*/

 

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